A DESCRIPTION OF THE PROBLEM :
A file "" is reported to exist, in the past it didn't.

REGRESSION : Last worked in version 21.0.9

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
$ jshell
| Welcome to JShell -- Version 25.0.1
| For an introduction type: /help intro

jshell> new File("").exists()
$1 ==> true

while

$ jshell
| Welcome to JShell -- Version 21.0.8
| For an introduction type: /help intro

jshell> new File("").exists()
$1 ==> false

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
false

---------- BEGIN SOURCE ----------
new File("").exists()
---------- END SOURCE ----------